Trivex Lenses Vs High Index

If your prescription isn’t quite as extreme , polycarbonate is a great choice. It’s lightweight, strong and the lenses generally cost a lower amount.
Trivex is also very resistant to material deflection due to the higher temperatures encountered during hard coat curing processes. These can reach over 266 degrees and will result in optical distortions of the finished lens. Trivex is 90 percent more resistant to this type of induced distortion than polycarbonate.
For all those reasons Trivex may be the better choice in a mid-index lens. Trivex lens materials can safely replace polycarbonate lenses for children’s glasses.

• Currently, he has spent days gone by 5 years working as a freelance health content writer and medical editor for different public hospitals in central Barcelona.
• After polycarbonate’s introduction in the lenses market, it became the staple for safety glasses, children’s eyewear, and sports goggles.
• 1.74 index lenses are around 50% thinner than CR-39, 30% thinner than polycarbonate and 10% thinner than 1.67.
• Polycarbonate has been the industry standard due to it being lightweight and impact-resistant .
• eyeglass lenses, that have a refractive index of just one 1.50.
• Thinner, lighter lenses manufactured from high index materials reflect around 50% more light than regular glass or plastic lenses (up to 12% of available light).

is plastic lenses usually do not inherently block UV light and extra UV coating is necessary. Finally, plastic is not a dense material and can add significant weight and thickness to a lens assuming you have a significant prescription. It is the lightest of all modern lens materials but is strong enough to endure a high level of impact, rendering it a perfect choice for sports glasses and safety goggles/glasses. Better yet, with an Abbe value of about 44, Trivex shows a substantial improvement over polycarbonate in optical clarity. Price could be a determining factor here, as Trivex generally costs about double the amount of polycarbonate.

Materials For Glasses: Trivex Is Really A New Lens Type

Try to edge yourself; if it has strips mounted on the edge, it’s polycarbonate. Hit it with a hammer and if it doesn’t break and bounces, it’s a polycarbonate.

Owners of Trivex lenses usually do not fear the accidental drop onto your bathrooms or kitchen’s tile floor. When cleaning lenses with anti-reflective coating, be sure to utilize the products recommended by your optician.

Trivex Vs Polycarbonate

However, you should understand your choice will affect durability, visual clarity, and much more. So we’ll examine both most typical lens materials here and present advantages and disadvantages you should be aware of. In the decade it was launched, tinted lenses were an extremely popular option for eyeglasses. As the poly substrate itself can’t be tinted, a revised kind of tintable scratch-coating required research, development and testing. For more info on eyeglass lenses, visit ABOUT Vision®. Various high index lenses are available today in various price points predicated on how much thinner they are in comparison to regular plastic lenses.

Just as you use sunscreen to help keep the sun’s UV rays from harming your skin, UV treatment in eyeglass lenses blocks those same rays from damaging your eyes. Overexposure to ultraviolet light is thought to be an underlying cause of cataracts, retinal damage along with other eye problems. Trivex lenses could be slightly thicker than polycarbonate lenses, however they provide comparable impact resistance and, like polycarbonate lenses, they block 100% of the sun’s harmful Ultra violet rays.
High index plastic’s index ranges from 1.67 to at least one 1.74, rendering it considerably thinner and much more lightweight than Trivex, especially in higher prescriptions. High index plastic has similar scratch resistance to Trivex.

This is because they offer completely protection from Ultra violet rays, sharper central vision, and sharper peripheral vision. In 2001, PPG Industries created a fresh purpose for a breakthrough plastic technology called Trivex. This urethane-based pre-polymer substance has three primary benefits for eyeglass lenses. High index plastic’s key feature is its thinness, especially in higher prescriptions. If you are choosing eyeglass lens materials, there are also some features or enhancements that you may want to consider.